Benzamide, 3-(8-hydroxy-6-quinolinyl)-N-(3-phenylpropyl)-

NCGC00244536 displays high selectivity for the fast-growing AR-negative PC3 cells (IC ₅₀ =40 nM) and over 100-fold selectivity against the immortalized prostate epithelial cell lines PrEC1 and PrEC4 . NCGC00244536 effectively inhibits AR-positive cell lines, including LNCaP and VCaP, with IC ₅₀ s in the sub-micromolar range, and abolishes androgen-stimulated LNCaP cell growth. NCGC00244536 is also potent in inhibiting the growth of other cancer cell lines, including the breast cancer cell lines MDA-MB2 and MCF-7, with micromolar IC ₅₀ s.

Treatment with NCGC00244536 results in significant inhibition of tumor growth and animals do not exhibit any major toxicity and appear to be normal. Histological data clearly indicate that NCGC00244536-treated tumors have significant amount of cell apoptosis, necrosis, and fibrosis .